Once again Senator is on the money. we flew YYZ/HKG in Executive First 2 years ago in the new Herringbone seat pattern that have the full lie flat bed. Lounge in YYZ was nothing to write about the beds were quite good and the service on our flight was attentive and food done very well.
Not as good as our flight on TG in First then onto BKK which was over the top and so was the First Lounge in BKK. But I digress.
My partner and I sat across from each other on the AC flights and we could have a chat without it being an issue. Better across then either in front of or behind you.